Spectrophotometer

Japanese: spectrophotometer
Spectrophotometer

...The term photometer is generally used, but this means a light measuring instrument and does not necessarily mean a photometer. A spectrophotometer is called a spectrophotometer. (1) A device that measures the luminous intensity of a light source. ...

From [Spectroscope]

...Many of them can record the absolute value of the spectral radiation of a light emitter in the form of a spectrum by using a combination of a spectrograph and an image sensor, or a monochromator and a single detector, and some have a built-in standard light source for this purpose. (6)Spectrophotometer While a spectroradiometer is intended for quantitative measurement of the intensity of a light emission spectrum, a spectrophotometer is a device for quantitatively measuring the spectrum based on light absorption, reflection, scattering, etc. Its configuration is similar to that of a spectroradiometer, but it has a built-in light source for irradiating the sample, and the absolute and relative values ​​of the above spectrum are directly output. ...

*Some of the terminology that mentions "spectrophotometer" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…一般にフォトメーターphotometerという語が使われるが,これは測光器という意味で必ずしも光度計を意味しない。分光光度計のほうはスペクトロフォトメーターspectrophotometerという。(1)光源の光度を測定する装置。…

【分光器】より

…分光写真器とイメージセンサー,モノクロメーターと単検出器の組合せなどを用い,発光体の分光放射量の絶対値がスペクトルの形で記録しうるものも多く,そのための標準光源を内蔵したものもある。(6)分光光度計spectrophotometer 分光放射計が発光スペクトル強度の定量測定を対象とするのに対し,光の吸収,反射,散乱などに基づくスペクトルを定量測定するための装置である。構成は分光放射計と類似であるが試料照射用の光源を内蔵しており,上記スペクトルの絶対値や相対値が直接出力される。…

※「spectrophotometer」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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